EP2062698B1 - Machine-outil manuelle dotée d'une réception d'outil de percussion - Google Patents

Machine-outil manuelle dotée d'une réception d'outil de percussion Download PDF

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Publication number
EP2062698B1
EP2062698B1 EP08105656.6A EP08105656A EP2062698B1 EP 2062698 B1 EP2062698 B1 EP 2062698B1 EP 08105656 A EP08105656 A EP 08105656A EP 2062698 B1 EP2062698 B1 EP 2062698B1
Authority
EP
European Patent Office
Prior art keywords
hand tool
holding sleeve
machine according
radially
tool machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08105656.6A
Other languages
German (de)
English (en)
Other versions
EP2062698A1 (fr
Inventor
Alexander Cycon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP2062698A1 publication Critical patent/EP2062698A1/fr
Application granted granted Critical
Publication of EP2062698B1 publication Critical patent/EP2062698B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02—Percussive tool bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B25D2217/0042—Ball-shaped locking members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/365—Use of seals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17094—Sleeve type retainer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17743—Reciprocating cam sleeve
    • Y10T279/17752—Ball or roller jaws

Definitions

  • the invention relates to an at least partially a tool along a striking axis drivingly driving hand tool with a Schlagwerkmaschinesch, in particular a hammer drill or a chisel hammer, according to the preamble of
  • Claim 1 and as from DE 101 57 831 A1 known.
  • EP160463 has a striking hand tool on a tool side open, one-piece pot-shaped striker, which is rotatably mounted even in the work spindle and limited axially movable.
  • the insertion of the impact tool is in turn rotatably within this pot-shaped bonnet and limited axially movably mounted and surrounded by flushing liquid before it penetrates the front side into a flushing bore of the impact tool.
  • the rinsing liquid as well as the seals arranged between moving parts largely prevent the entry of abrasive dust. Optimized for mine operations, the solution is not designed for standard dry building applications.
  • the object of the invention consists in the realization of a dust-tight as possible hand tool machine with a Schlagtechnikmaschinemaschinence.
  • a hand tool with which at least partially a tool along a striking axis is driven to beat, a striking tool and a work spindle, in which an at least unilaterally open receiving sleeve rotatably and axially limited movably mounted in the at least one locking element for a in the receiving sleeve insertable end of the tool is mounted radially displaceable, wherein the receiving sleeve is closed at one end by a fixed in her, axially projecting striker.
  • the receiving sleeve closing, fixed anvil are both together cup-shaped closed, whereby penetration of dust into the machine interior is prevented.
  • the striker is elastically fixed in the receiving sleeve by an elastic intermediate layer, eg. Vulcanization, whereby impact pulses applied to the free end of the striker are largely decoupled from the receiving sleeve and thus almost completely transferred to the impact tool.
  • an elastic intermediate layer eg. Vulcanization
  • the tool-side end face of the anvil is formed crowned, which can tolerate a lag moment tolerant to a recorded in the receiving sleeve insertion end can be done.
  • the receiving sleeve forms the machine side radially outward, axially and radially réelleckende rotary driving wing, which engage in appropriately associated spindle grooves of the work spindle, whereby the receiving sleeve is rotatably and axially limited movably connected to the work spindle.
  • the receiving sleeve radially inside, axially and radially réellede Drehmit Spotifystege, in which matingly associated rotary driving grooves of the insertion engage, whereby the insertion end is rotatably connected to the receiving sleeve.
  • At least one locking element in the receiving sleeve at least one locking element, further advantageously a locking ball, mounted radially displaceable, whereby a recorded in this tool is axially locked.
  • the tool forms associated elongated locking grooves, it is axially limited movable.
  • the shape of the locking recess corresponds to the shape of the locking element, for example, that of a spherical cap to a locking ball, it is axially fixed.
  • the locking element radially outwardly assigned a displaceable locking means, further advantageously a locking sleeve, whereby the locking of the tool can be locked in the receiving sleeve.
  • the locking means is resiliently biased by a spring means against the receiving sleeve, further advantageously via a spiral spring, whereby the locking means is formed self-locking.
  • the limited axially movable receiving sleeve with respect to the work spindle with a sealant sealed dustproof further advantageous via a diaphragm seal, which has at least one axial fold, whereby a sufficiently large axial movement is sealed fatigue-free.
  • the membrane seal is attached at one end to a spring cup, which is itself fixed dust-tight to the receiving sleeve, for example. Via an O-ring, whereby the axial length of the impact tool receptacle is shortened.
  • FIG. 1 has a hand tool machine 1, only partially shown, with which a tool 2 is driven with respect to a striking axis A striking and rotating, a striking tool holder 4 and a work spindle 5, in which a tool-side receiving sleeve 6 rotatably and axially limited movably mounted.
  • the insertion end 3 of the tool 2 introduced into the receiving sleeve 6 is locked in an axially fixed manner by means of two locking elements 7 mounted so as to be radially displaceable in the receiving sleeve 6.
  • the receiving sleeve 6 is closed on the machine side by a stopper 8 which is fixed in this machine-side axially and which has been transferred by shrinking into a press fit with the receiving sleeve 6.
  • the tool-side end face 9 of the striker 8 is formed crowned.
  • the receiving sleeve 6 forms the machine side radially outward, axially and radially réelleckende rotary drive wing 10, which engage in appropriately associated spindle grooves 11 of the work spindle 5.
  • the receiving sleeve 6 forms radially inward, axially and radially Retrockende Drehmit Spotifystege 12, in which suitably associated rotary driving grooves 13 of the insertion end 3 engage.
  • At least one locking element 7 is radially displaceably mounted and locked in the form of a locking ball.
  • the recorded tool 2 is fixed axially.
  • the locking element 7 is radially outwardly of a hand-operable outer sleeve 14th assigned displaceable locking means 15 in the form of a locking sleeve, which is biased by a spring means 16 in the form of a coil spring resiliently against the receiving sleeve 6.
  • the limited axially movable receiving sleeve 6 is dust-tight sealed with respect to the work spindle 5 with a sealant 17 in the form of a membrane seal with an axial drape, which is attached at one end to a spring cup 18, the dust-tight even on an O-ring 19 on the receiving sleeve. 6 is fixed.
  • the recorded in the impact tool holder 4 tool 2 with a substantially cylindrical insertion end 3 has two axially fixed locking in the receiving sleeve 6 with the two locking elements 7 in the form of locking balls form-fitting suitable locking recesses 20 in the form of Kugelkalottenaus principles adopted in the fourfold guide diameter F of Front end of the insertion end 3 are spaced.
  • the insertion end 3 also has two elongated locking grooves 21, which extend up to twelve and a half times the guide diameter F from the front end, but are inoperative in this impact tool receptacle 4.
  • Fig. 2 is according to the invention in contrast to Fig. 1 the striker 8 by an elastic intermediate layer 22 in the form of a vulcanization with silicone rubber elastically in the receiving sleeve 6 '(without Drehit Spotifystege 12 from Fig. 1 ) elastic.
  • the two locking elements 7 in the form of locking balls axially positively locking recess 20 ' is formed in the form of a circumferential Kreisringradialnut. There is no rotational drive of the insertion 3 '.
  • Fig. 3 are different from Fig. 1 the axially projecting striker 8 and the receiving sleeve 6 'which is open on one side are formed integrally from one piece and material.
  • the rotational drive of the insertion end 3 in the receiving sleeve 6 '(without rotary driving webs 12 off Fig. 1 ) takes place exclusively with the locking elements 7 and the form-locking locking recesses 20 of the insertion end.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (9)

  1. Machine-outil manuelle au moyen de laquelle un outil (2) peut être entraîné, au moins partiellement, de manière percutante le long d'un axe de percussion (A), comportant un porte-outil de percussion (4) et une broche de travail (5), dans laquelle une douille de réception (6, 6') ouverte au moins d'un côté est montée non rotative et axialement mobile de manière limitée, dans laquelle au moins un élément de verrouillage (7) pour une tige (3, 3') de l'outil (2) pouvant être introduite dans la douille de réception (6, 6') est supporté de manière à pouvoir être déplacé radialement, dans laquelle la douille de réception (6, 6') est fermée à une extrémité par une enclume (8) bloquée dans la douille et faisant axialement saillie,
    caractérisée en ce que l'enclume (8) est élastiquement bloquée dans la douille de réception (6') par une couche intermédiaire élastique (22).
  2. Machine-outil manuelle selon la revendication 1, caractérisée en ce que la face avant côté outil (9) de l'enclume (8) est formée convexe.
  3. Machine-outil manuelle selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que la douille de réception (6, 6') forme, côté machine, des ailettes de transmission de rotation (10) radialement externes, s'étendant axialement et radialement, lesquelles ailettes s'engagent dans des rainures de broche (11) de la broche de travail (5) associées de manière correspondante.
  4. Machine-outil manuelle selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la douille de réception (6) forme des nervures de transmission de rotation (12) radialement intérieures, s'étendant axialement et radialement, dans lesquelles s'engagent des rainures de transmission de rotation (13) de la tige (3) associées de manière correspondante.
  5. Machine-outil manuelle selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'au moins un élément de verrouillage (7) est monté dans la douille de réception (6, 6') de manière à pouvoir être déplacé radialement.
  6. Machine-outil manuelle selon l'une quelconque des revendications 1 à 5, caractérisée en ce que des moyens d'arrêt mobiles (15) sont associés à l'élément de verrouillage (7) radialement vers l'extérieur.
  7. Machine-outil manuelle selon la revendication 6, caractérisée en ce que les moyens d'arrêt (15) sont préchargés par des moyens à ressort (16) faisant ressort contre la douille de réception (6, 6').
  8. Machine-outil manuelle selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la douille de réception (6, 6') axialement mobile de manière limitée est rendue étanche aux poussières contre la broche de travail (5) par des moyens d'étanchéité (17).
  9. Machine-outil manuelle selon la revendication 8, caractérisée en ce que les moyens d'étanchéité (17) sont fixés avec une extrémité sur une cuvette de ressort (18) elle-même fixée de manière étanche aux poussières sur la douille de réception (6, 6').
EP08105656.6A 2007-11-23 2008-10-24 Machine-outil manuelle dotée d'une réception d'outil de percussion Active EP2062698B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007056531A DE102007056531A1 (de) 2007-11-23 2007-11-23 Handwerkzeugmaschine mit Schlagwerkzeugaufnahme und zugeordnetes Werkzeug

Publications (2)

Publication Number Publication Date
EP2062698A1 EP2062698A1 (fr) 2009-05-27
EP2062698B1 true EP2062698B1 (fr) 2013-06-05

Family

ID=40380059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105656.6A Active EP2062698B1 (fr) 2007-11-23 2008-10-24 Machine-outil manuelle dotée d'une réception d'outil de percussion

Country Status (5)

Country Link
US (1) US8459658B2 (fr)
EP (1) EP2062698B1 (fr)
JP (1) JP5432505B2 (fr)
CN (1) CN101439512B (fr)
DE (1) DE102007056531A1 (fr)

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DE102011004985A1 (de) * 2011-03-02 2012-09-06 Hilti Aktiengesellschaft Werkzeugaufnahme
US9393711B2 (en) * 2011-04-11 2016-07-19 Milwaukee Electric Tool Corporation Hand-held knockout punch driver
DE102011077244A1 (de) * 2011-06-09 2012-12-13 Hilti Aktiengesellschaft Werkzeugaufnahme
JP2012254513A (ja) * 2011-06-10 2012-12-27 Makita Corp 打撃工具
DE102011080800A1 (de) * 2011-08-11 2013-02-14 Hilti Aktiengesellschaft Handwerkzeugmaschine
DE102011081617A1 (de) * 2011-08-26 2013-02-28 Hilti Aktiengesellschaft Handgehaltene Werkzeugmaschine
FR3007308B1 (fr) * 2013-06-20 2015-07-03 Castorama France Machine de percage portative
CN103533736B (zh) * 2013-10-21 2016-01-20 芜湖鼎瀚再制造技术有限公司 一种自动点火式等离子喷枪的回转导杆
EP2894009A1 (fr) * 2014-01-09 2015-07-15 HILTI Aktiengesellschaft Machine-outil portative
EP2907624A1 (fr) * 2014-02-17 2015-08-19 HILTI Aktiengesellschaft Machine-outil portative
EP2910337A1 (fr) * 2014-02-20 2015-08-26 HILTI Aktiengesellschaft Porte-outil
WO2015161377A1 (fr) * 2014-04-22 2015-10-29 Maxtech Consumer Products Limited Mécanisme de mandrin à raccordement rapide pour pointes de tournevis, et analogues
FR3022477B1 (fr) * 2014-06-19 2017-02-24 Castorama France Machine de percage
EP3034242A1 (fr) * 2014-12-18 2016-06-22 HILTI Aktiengesellschaft Machine-outil manuelle
US10344861B2 (en) 2015-04-24 2019-07-09 Caterpillar Inc. Hammer having composite piston sleeve
CN105900790A (zh) * 2016-03-28 2016-08-31 宁波大叶园林科技有限公司 自动停启式快速水咀接头
US10850381B2 (en) * 2016-05-18 2020-12-01 Makita Corporation Impact tool
WO2018235641A1 (fr) * 2017-06-19 2018-12-27 株式会社マキタ Outil de fixation
EP4175788A4 (fr) 2020-07-02 2024-09-25 Milwaukee Electric Tool Corp Outil à percussion rotatif comprenant un dispositif de maintien de foret
DE102020213165A1 (de) * 2020-10-19 2022-04-21 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine mit einer Verriegelungseinrichtung

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Also Published As

Publication number Publication date
CN101439512A (zh) 2009-05-27
US8459658B2 (en) 2013-06-11
EP2062698A1 (fr) 2009-05-27
US20090145620A1 (en) 2009-06-11
JP5432505B2 (ja) 2014-03-05
DE102007056531A1 (de) 2009-05-28
JP2009125929A (ja) 2009-06-11
CN101439512B (zh) 2012-10-10

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